Question

Rozwiąż zadanie. ; * (razy) / (mianownik)

a) 8,75 : 3 1/2 =

b) (4 1/4 - 0,875) : 3/4 =

c) (7,5 - 6 3/4 ) * ( 4 1/2 - 2,5) =

d ) 5,4 - 1,4 * 1 4/21 =

e) (1,6 - 2/3 ) : (1,6 * 2/3 ) =

f) 3,2 - 2 3/4 =

POMOCYY !!! ;(((((***

Answer 1

a) = 8 3/4 : 3 1/2= 35/4 : 7/2= 35/4 * 2/7 = 70/28=2 1/2

b) = (4,25- 0,875) : 0.75 = 3,375 : 0,75 = 4,5

c) = (7,5 - 6,75)* (4,5-2,5) = 0,75 * 2 = 1,5

d) = 5 4/10 - 1 4/10 * 1 4/21= 54/10 - 1 4/10 * 1 4/21 = 54/10 - 10/6 = 3  11/15

e) =(1 6/10 - 2/3) : (1 6/10 * 2/3) = 14/15 : 16/15 = 7/8

f) = 3 2/10 - 2 3/4 = 64/20 - 55/20 = 9/20